EP 0076604 A2 19830413 - System and method for pattern recognition.
Title (en)
System and method for pattern recognition.
Title (de)
Gerät und Verfahren zur Mustererkennung.
Title (fr)
Système et méthode pour la reconnaissance de formes.
Publication
Application
Priority
US 30754181 A 19811001
Abstract (en)
A system and method are disclosed for optically reading out one or more discrete line patterns from a pattern-carrying medium under a range of different conditions. The patterns may constitute alphanumeric characters arranged in serial alignment on the medium or a variety of other types of line patterns, or a single line pattern. in accordance with the present invention, the disclosed system is capable of succes- slvely reading out the patterns with a high degree of reliability, notwithstanding variations in their size, orientation and location, or variations in the color and reflectivity of the pattern-carrying medium surface. Further, the disclosed system and method are tolerant of the presence of blotches, scratches and other surface marks, and of irregularities in the otherwise uniform planar or curved surface of the medium. The invention is applicable to the readout of patterns that are printed on the surface, stamped or otherwise impressed onto It, or raised above it by embossing or the like.
IPC 1-7
IPC 8 full level
G06V 10/12 (2022.01); G06T 7/00 (2006.01); G06V 10/10 (2022.01); G06V 10/24 (2022.01); G06V 10/75 (2022.01)
CPC (source: EP KR US)
G06V 10/10 (2022.01 - EP US); G06V 10/12 (2022.01 - EP US); G06V 10/24 (2022.01 - EP US); G06V 10/75 (2022.01 - EP KR US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0076604 A2 19830413; EP 0076604 A3 19861105; EP 0076604 B1 19900228; AU 534952 B2 19840223; AU 8890082 A 19830505; BR 8205704 A 19830830; CA 1190977 A 19850723; DE 3280123 D1 19900405; ES 515839 A0 19831216; ES 8401648 A1 19831216; IL 66714 A0 19821231; IL 66714 A 19851031; IN 157610 B 19860503; JP S5875275 A 19830506; KR 840001734 A 19840516; KR 860001436 B1 19860924; MX 152538 A 19850816; US 4499595 A 19850212; ZA 826161 B 19830727
DOCDB simple family (application)
EP 82305027 A 19820923; AU 8890082 A 19820930; BR 8205704 A 19820929; CA 412645 A 19821001; DE 3280123 T 19820923; ES 515839 A 19820921; IL 6671482 A 19820903; IN 1087CA1982 A 19820920; JP 17383182 A 19821001; KR 820004417 A 19820930; MX 19463082 A 19821001; US 30754181 A 19811001; ZA 826161 A 19820824